Since the Iron Man arc reactor ... The Stark Arc Reactor is most likely a Multi-Isotope Radio-Decay Cell. Let’s look at what we know about the arc reactor from movies 1 and 2.

Tony Stark’s arc reactor ... his heart and killing him. That, too, would evolve and become a “housing unit for parts” in later movies after Tony had it permanently removed in Iron Man ...

In 2008, the Marvel Cinematic Universe had its first rousing success with the release of Iron Man. In the movie ... him to create an arc reactor to keep his heart alive. It’s a pocket-sized ...

"In case you were ever in doubt, now there's "Proof that Tony Stark has a heart." This finely detailed Mark 1 Arc Reactor includes ... up more than the faces of Iron Man fans." ...

In Ultimates #12, by Deniz Camp and Juan Frigeri, the Ultimates' battle with Hulk and his army did not go as smoothly as the heroes thought, as Iron Man reveals to the team that H ...

The Mark 1 armor adds ... The ARC reactor that powers the suit and keeps Tony’s heart safe from shrapnel is basically magic. Look closely and you can even see a hint of the man inside the ...